Is Brexit to blame?

But when British and Japanese prime ministers met on Thursday, they did not discuss the latest on the nuclear power plant.

Japan’s Shinzo Abe said: “On the Horizon nuclear power plant project, this is a project which is of strategic importance for both nations.

“I do understand that stakeholders including Hitachi are currently discussing this matter and I will wait until they come to a conclusion.

“We did not touch upon this issue in our summit meeting today.”

Theresa May added: “This is a commercial decision for the company, we have been working with them, but it will be a commercial decision for the company.”

Image caption
Wylfa was not discussed when Japan’s Shinzo Abe met Theresa May on Thursday

Speaking on Friday, Wales’ former first minister, Carwyn Jones, said he found the developments worrying.

“What is troubling me this morning, having heard that news, is this is a case of the UK government being so focused on Brexit that they are not focused on other issues,” he said.

“And there are bread and butter issues that are hugely important for people living on Anglesey.”

Sue Ferns, of the union Prospect, echoed worries that the issue of nuclear power was not raised when Mrs May and Mr Abe met.

“The Japanese prime minister was in Downing Street only yesterday – did the prime minister even think to raise the issue of nuclear new build or was the only thing on her mind the chance to take advantage of his visit to try to give another futile boost to her Brexit deal?” she added.

Peter McIntosh, national officer for energy at the union Unite, said: “Government must take action now, because if the project does not proceed, it will have a devastating impact on the Welsh economy and on the UK’s ability to meet its climate change obligations.

But new first minister Mark Drakeford said that while the situation was worrying, “it’s still speculation”.

A spokesman for UK government’s Department for Business, Energy and Industrial Strategy, said: “Negotiations with Hitachi on agreeing a deal that provides value for money for consumers and taxpayers on the Wylfa project are ongoing.

“They are commercially sensitive and we do not comment on speculation.”

What has Hitachi said?

On Friday, the firm said suspension of the project remained an option.

But it said the latest news report in Japan were not “based on Hitachi’s decision or disclosed information”.

“No formal decision has been made in this regard currently, while Hitachi has been assessing the Horizon project including its potential suspension and related financial impacts in terms of economic rationality as a private company,” it said in a statement.

The new nuclear plant would aim to have a generating capacity of 2900 MW by the mid 2020s and have a 60-year operational life.

Shares in the Japanese company jumped 8% after the report the project would be suspended.

The original Wylfa nuclear plant near Cemaes closed in 2015 after more than 40 years’ service.